Serpent 500910 Front Shock Spring 13mm Green 4lbs for R/C  [SER500910]

13mm front coil, rated 4lbs

This Serpent 500910 spring is built for front R/C shock duties, specified with a 13mm active length and a 4lbs rate, finished in green. It serves as a direct option for setups that need compact springs to alter front support or tune weight transfer on smaller models.

Installation follows common shock service steps: remove the cap and shaft, position the spring over the shaft and onto its retainer, then reassemble while ensuring correct preload and clearance. Always confirm that the spring inner diameter and retainer style match your shock components to avoid binding.

Using a firmer 4lbs front spring increases initial resistance and roll stiffness, which can raise ride height and change balance; it is best applied alongside damping adjustments and ride-height tweaks rather than as a lone change.